Shaft suspension.



PATENTBD 60w. 1, 1907.

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T. w, GAPEN. SHAFT snsrnnsron. APPLICATION FILED 001 26, 19M

WHNEQES: I

No. 867,557. L PATENTED OCT. 1, 1907.

T. W. GAPEN.

SHAFT SUSPENSION. urmouron z unn 001220. 1905.

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OAPEN,

SHAFT SUSPENSION.

Specification of Letters Patent; v

Patented Oct. 1, 1907.

Application filed October 26, 1905. Serial No. 284,441.

To all whom it may concern:

Be it known that THOMAS W. OAPEN, a citizen of the United States,residing at Milwaukee, in the county of Milwaukee and State ofWisconsin, has in rented certain new and useful Improvements in ShaftSuspension, of which tho iollowing is a specification.

This invention relates'to a hearing, in which provision is made topermit movements other than that of. rotation'betwcen two members.

This invention has utility in structures wherein the driven shaft issuspended, and it is necessary to have a very strong upper hearing whichwill permit lateral or rocl'rable movement of the shaft. Gyratory rockand ore breakers must withstand very hard usage, andwhen thereinapplied, this hearing, besides taking care of.the lateral movements,permits of a fixed low fulcrum plane for the shaft, as well as verticaladjustment for the shaft.

Referring to the drawings: Figure 1 is a sectional view oi thesuspension bearing. Fig. 2 is a plan view oi the split nut for theshaft. Fig. 3 is a sectional elevation of a rock and ore breakerin whichthe suspension bearing is shown;

The shaft 1, has surrounding it the bushing 2, which bushing is fixed inthe frame or fixed member 3. The fixed member 3 is shown on the drawingas a spider for supporting the upper end of the shaft or a gyratorycrusher. The hub of the spider is formed with a through bore forreceiving the bushing 2, and by through bore is meant such a borethrough a part as would not have any'shoulder within the here, or inother words, where no counterborc is formed. The bushing or element 2,fits the inner member or shaft 1 in a plane through the fulcrum point A,thus providing a 3 fulcrum bearing for the shaft 1. The inner surface ofthe bushing is tapered from this i'ulcguii bearing to permit relativegyration or rocking between the bushing and shaft. Struck upon an arciroliilllrc point A is the spherical zone rocking bearing surfaceforming 4 a projecting upppr end of the bushing or element 2. Fittingthis convex bearing surface, is the bearing-ring 4, having a concavelower side and a plane upper side, in which are oil grooves 1.4.- Thisbcaring ring is. a loose means which will permit rocking- 4 upon thecurved surface and relative rotation between its plane surface and thesplit supporting nut 5. This split supporting nut 5 engages a threadedportion of the shaft 1. To adjust theshai't vertically, the pin 6 isremoved from the registered slots in the supporting nut 5 and shaft 1;and the bolts, 7, slacked.

A cap 8, fits the outwardly iding flange on the bushing 2. In this capis an elf fie 9, through which lubricant may be introduced to thechannel 10 in the bushing 2. The bushing 2 is non-adjustably fixed tothe frame 3 by a dowel pin 11 so that to most intents and purposes itforms a part thereof.

The shaft 1 has loosely mounted on its lower end, the eccentric 12,which is driven by gearing 13. In operation, before under load, thefriction may cause the shaft 1.1.0 rotate with the eccentric. However,when rock is introduced, the rotation of the shaft in that direction isnot only retarded, but the shaft turns in the opposite direction. Itaccordingly appears that this shait has -two independent motions. Thebearingring 4 takes care of both those movcmmits, the rocking motioncaused by the eccentric on its lower curvcd bearing surface, and therotation caused by the load upon its upper plane surface.

What is claimed, and it is desired to secure by Letters Patent is:

1. Au outer member having :1 through bore, a bushing therein having anoutwardly'cxtcndi'ng supporting flange ill an end of the through bore,the (hinge having :1 spherical zone rocking bearing surface, and thebushing providing a fulcrum bearinmaud an inner member loosely supportedon the bushing and com-ling with the bushing at the fulcrum bearing andat the rocking bearing.

2. A loose positively rocked member, 11 supporting moans, a bushingcoacting with the supporting means and providing a fulcrum for themember, adjusting meains for the member, and a bearing ring having aplane side and a concave side interposed between the adjusting mcipisand the bushing.

3. In an orc crusher of the class described the combination of a spiderportion having a. bore, a bushing portion fixed in the bore and providedwith an end projecting beyond the bore for supporting the bushingportion, a gyrating shaft, a supporting means secured to the upper endof said shaft, and a loose bearing ring surrounding said shaft andresting solely upon the projecting end of the spider bushing andinterposed between the projecting end of the bushing: and the supportingmeans.

'4. in a crusher, a spider portion havlng a through bore devoid ofcounter-bore, a shaft suspended from the spider, a bushing fixed to thespider and extending within the bore of the spider to form for the shaft0. fulcrum bearing fixedly maintained as to the spider and alsoextending beyond the bore of the spider to form a rocking bearing forthe shaft, and adjusting menus for the shaft.

in testimony whereof he aiiixes his signature in presence of twowitnesses.

THOMAS w. CAI'EN.

